The teachers are awesome! GSA has such a fun atmosphere, with a positive emphasis on learning and safety.  I have never met a group of more caring people than the ones who dedicate their lives to teaching our children at GSA.  The whole staff really gets into the spirit of dressing up in character, which the kids love. My kids have learned so much in their time at GSA, and made great friends!  I love this school.

Laurie Adams, Parent 

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Gateway Science Academy St. Louis Middle & High School


Apply Now for K-12

Parents can apply to GSA St. Louis Middle-High online for grades 6-9 here.

Discover our School

Gateway Science Academy St. Louis Middle & High School is a public charter school serving sixth grade through twelfth grades that opened in 2010. We provide our students with an innovative world class education, rich in math, science and technology. Gateway Science Academy St. Louis Middle & High School focuses on preparing students to become bold inquirers, problem solvers and ethical leaders, with skills ready to meet the challenges of a competitive global workforce.


GSA St. Louis Fyler with Numbers

Students Enrolled
Total Graduates

Quick Links

We are currently accepting applications for Grades 6 through 9 for
the 2022-2023 academic year.


Grades Online
You can check your grades online via ConceptSIS database system.
Grades Online
MOCAP has developed a catalog of virtual online courses for students.
More Details
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